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Finding the Fourth Proportional to 123,204.96, 170,028.64 and 69,488.80

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Solution

The fourth proportional to 123,204.96, 170,028.64 and 69,488.80 is: 95,897.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,204.96 : 170,028.64 = 69,488.80 : x
  2. Step 2: Convert to fraction form
    123,204.96/170,028.64 = 69,488.80/x
  3. Step 3: Cross multiply
    123,204.96x = 170,028.64 × 69,488.80
  4. Step 4: Simplify right side
    123,204.96x = 11,815,086,159.23
  5. Step 5: Solve for x
    x = 11,815,086,159.23/123,204.96
  6. Step 6: Final answer
    x = 95,897.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.